וַיְכַלְכֵּ֤ל יוֹסֵף֙ אֶת־אָבִ֣יו וְאֶת־אֶחָ֔יו וְאֵ֖ת כָּל־בֵּ֣ית אָבִ֑יו לֶ֖חֶם לְפִ֥י הַטָּֽף׃
And Joseph sustained his father, and his brethren, and all his father’s household, with bread, according to the want of their little ones.
Read halakhic rulings (Jewish law) on Genesis 47:12: and classical halakhic sources.